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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 2547537024

Certificate GIA 2547537024

Diamond specifications and retailer prices

From $5,011 AUD
As of November 6, 2026
Save $5,548 AUD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,404 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2547537024. Listed at 19 retailers as of November 6, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547537024
Dimensions7.79 × 6.57 × 4.94 mm
L/W Ratio1.19
Top View
7.79 mm6.57 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547537024
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,885 AUD|Low: $5,011 AUD|High: $11,348 AUD|Avg: $7,069 AUD|-5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 17$5,011 AUD
Retailer 4$5,710 AUD
Retailer 16$5,779 AUD
Retailer 12$5,829 AUD
Retailer 6$5,893 AUD
Retailer 5$5,906 AUD
Retailer 15$6,063 AUD
Retailer 2$6,094 AUD
Retailer 10$6,366 AUD
Retailer 7$6,375 AUD
Retailer 11$6,656 AUD
Retailer 1$6,885 AUD
Retailer 9$7,287 AUD
Retailer 13$8,016 AUD
Retailer 8$8,762 AUD
Retailer 14$10,437 AUD
Retailer 3$10,559 AUD

26 data points across 17 retailers

19 retailers$5,011 AUD to $10,559 AUD

A
Cheapest Retailer
-
$5,011 AUD
B+
Retailer 2
-
$5,710 AUD
View
A
Retailer 3
-
$5,779 AUD
View
A
Retailer 4
-
$5,829 AUD
View
Retailer 5
-
$5,893 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$5,906 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$6,063 AUD
View
Final sale: no returns
B+
Retailer 8
-
$6,094 AUD
View
B+
Retailer 9
-
$6,366 AUD
View
Retailer 10
-
$6,375 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$6,656 AUD
View
B+
Retailer 12
-
$6,885 AUD
View
Retailer 13
-
$7,287 AUD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$7,527 AUD
View
B+
Retailer 15
-
$8,016 AUD
View
B
Retailer 16
-
$8,762 AUD
View
B
Retailer 17
-
$10,437 AUD
View
B
Retailer 18
-
$10,559 AUD
View
Most Expensive
NZ Jewellers
dbab1464-9771-4455-8ed1-3db95c4e0cfe · Sep 25
$12,404 AUD
$8,523 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from $5,011 AUDSave up to $5,548 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Heart
$5,011 AUD